<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>

        // let key = "gender";

        let obj = {
            uname:"张三",
            age:18
        }

        // console.log(obj.uname);

        // console.log(obj["uname"]);

        // obj[key] = "男";

        // console.log(obj);


        for(let key in obj){
            console.log(obj[key]);
        }

       




    </script>
</body>
</html>